2014-12-07 19:44:55 +00:00
|
|
|
// Copyright Neil Groves 2009. Use, modification and
|
|
|
|
// distribution is subject to the Boost Software License, Version
|
|
|
|
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
//
|
2019-08-24 13:39:04 +00:00
|
|
|
// Copyright 2019 Glen Joseph Fernandes (glenjofe@gmail.com)
|
2014-12-07 19:44:55 +00:00
|
|
|
//
|
|
|
|
// For more information, see http://www.boost.org/libs/range/
|
|
|
|
//
|
|
|
|
#ifndef BOOST_RANGE_ALGORITHM_MIN_ELEMENT_HPP_INCLUDED
|
|
|
|
#define BOOST_RANGE_ALGORITHM_MIN_ELEMENT_HPP_INCLUDED
|
|
|
|
|
|
|
|
#include <boost/concept_check.hpp>
|
|
|
|
#include <boost/range/begin.hpp>
|
|
|
|
#include <boost/range/end.hpp>
|
|
|
|
#include <boost/range/concepts.hpp>
|
2019-08-24 13:39:04 +00:00
|
|
|
#include <boost/range/detail/less.hpp>
|
2014-12-07 19:44:55 +00:00
|
|
|
#include <boost/range/detail/range_return.hpp>
|
|
|
|
|
|
|
|
namespace boost
|
|
|
|
{
|
|
|
|
namespace range
|
|
|
|
{
|
|
|
|
|
2019-08-24 13:39:04 +00:00
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
|
|
|
|
template<typename Iterator, class Predicate>
|
|
|
|
inline Iterator
|
|
|
|
min_element(Iterator first, Iterator last, Predicate comp)
|
|
|
|
{
|
|
|
|
if (first == last) {
|
|
|
|
return last;
|
|
|
|
}
|
|
|
|
Iterator result = first;
|
|
|
|
while (++first != last) {
|
|
|
|
if (comp(*first, *result)) {
|
|
|
|
result = first;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace detail
|
|
|
|
|
2014-12-07 19:44:55 +00:00
|
|
|
/// \brief template function min_element
|
|
|
|
///
|
|
|
|
/// range-based version of the min_element std algorithm
|
|
|
|
///
|
|
|
|
/// \pre ForwardRange is a model of the ForwardRangeConcept
|
|
|
|
/// \pre BinaryPredicate is a model of the BinaryPredicateConcept
|
|
|
|
template<class ForwardRange>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type
|
|
|
|
min_element(ForwardRange& rng)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
|
2019-08-24 13:39:04 +00:00
|
|
|
return detail::min_element(boost::begin(rng), boost::end(rng), detail::less());
|
2014-12-07 19:44:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<class ForwardRange>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type
|
|
|
|
min_element(const ForwardRange& rng)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
2019-08-24 13:39:04 +00:00
|
|
|
return detail::min_element(boost::begin(rng), boost::end(rng), detail::less());
|
2014-12-07 19:44:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<class ForwardRange, class BinaryPredicate>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type
|
|
|
|
min_element(ForwardRange& rng, BinaryPredicate pred)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
|
2019-08-24 13:39:04 +00:00
|
|
|
return detail::min_element(boost::begin(rng), boost::end(rng), pred);
|
2014-12-07 19:44:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<class ForwardRange, class BinaryPredicate>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type
|
|
|
|
min_element(const ForwardRange& rng, BinaryPredicate pred)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
2019-08-24 13:39:04 +00:00
|
|
|
return detail::min_element(boost::begin(rng), boost::end(rng), pred);
|
2014-12-07 19:44:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// range_return overloads
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<range_return_value re, class ForwardRange>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
|
|
|
|
min_element(ForwardRange& rng)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
|
|
|
|
return range_return<ForwardRange,re>::pack(
|
2019-08-24 13:39:04 +00:00
|
|
|
detail::min_element(boost::begin(rng), boost::end(rng), detail::less()),
|
2014-12-07 19:44:55 +00:00
|
|
|
rng);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<range_return_value re, class ForwardRange>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
|
|
|
|
min_element(const ForwardRange& rng)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
|
|
|
return range_return<const ForwardRange,re>::pack(
|
2019-08-24 13:39:04 +00:00
|
|
|
detail::min_element(boost::begin(rng), boost::end(rng), detail::less()),
|
2014-12-07 19:44:55 +00:00
|
|
|
rng);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<range_return_value re, class ForwardRange, class BinaryPredicate>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
|
|
|
|
min_element(ForwardRange& rng, BinaryPredicate pred)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
|
|
|
|
return range_return<ForwardRange,re>::pack(
|
2019-08-24 13:39:04 +00:00
|
|
|
detail::min_element(boost::begin(rng), boost::end(rng), pred),
|
2014-12-07 19:44:55 +00:00
|
|
|
rng);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// \overload
|
|
|
|
template<range_return_value re, class ForwardRange, class BinaryPredicate>
|
|
|
|
inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
|
|
|
|
min_element(const ForwardRange& rng, BinaryPredicate pred)
|
|
|
|
{
|
|
|
|
BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
|
|
|
|
return range_return<const ForwardRange,re>::pack(
|
2019-08-24 13:39:04 +00:00
|
|
|
detail::min_element(boost::begin(rng), boost::end(rng), pred),
|
2014-12-07 19:44:55 +00:00
|
|
|
rng);
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace range
|
|
|
|
using range::min_element;
|
|
|
|
} // namespace boost
|
|
|
|
|
|
|
|
#endif // include guard
|